High Purity Silica As Thickening Agent

Thickener is the key raw material to dominate the stability of toothpaste. Its main functions are as follows: (1). (1) To make toothpaste have proper viscosity and consistency, without feeling greasy, and good fluidity. (2) The toothpaste has a skeleton, and the extruded toothpaste can stay on the toothbrush and not collapse, so it has good stripping performance. (3) When brushing teeth, toothpaste is easy to disperse and has good diffusion performance. (4) It has good stability and is not easy to biodegrade. During storage, the paste is stable and not stratified. It does not separate water from the paste and does not affect the odor and color of the toothpaste. It has good stability. (5) Make the paste exquisite and glossy, the abrasive is evenly dispersed, and the paste is not bonded back to coarse. (6) It has good compatibility with other components of toothpaste, especially active substances, and good compatibility.

Jinsha Precipitated Silica Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of high purity silica as thickening agent in China. With abundant experience, we warmly welcome you to buy high quality products made in China here from our factory. Contact us for more details.

High Purity Silica as Thickening Agent

Silicon dioxide is one of the most widely used abrasives. Its use began in the 1970s. It is an amorphous substance with spherical particles. When used, rolling friction on the tooth surface will not damage the teeth. Compared with traditional crystal prismatic calcium carbonate abrasive, it is more difficult to wear teeth.

Silica for toothpaste for abrasive

Test Methods	Properties	Units		Target Values (Spec Limits)	Actual Values
HG/T3065-2008	Loss on drying (2Hrs,105℃)加热减量	%		Max.7.0	5.85
HG/T3066-2008	Ignition loss 1000℃ 灼烧减量	%		Max.7.0	3.75
HG/T3072-2008	DBP absorption value DBP吸收值	cm³/g		2.5-2.9	2.70
HG/T3067-2008	pH value (10%aqueous suspension) pH值	—		6.0-8.0	6.74
HG/T3062-2008	SiO₂(Dry Basis) 二氧化硅(干基）	%		Min.96	98.1
HG/T3073-1999	BET specific surface area BET比表面积	m²/g		180-220	200
	Soluble salt (Na₂SO₄) 可溶性盐	%		Max.1.0	0.8


conclusion结论	This batch of product is qualified
Audit 审核			Analysis 分析人

Performance characteristics of silica for toothpaste：

① Silica has good chemical stability and does not react with other substances except soluble in strong alkali. Therefore, it has good compatibility and compatibility with other materials in the toothpaste, and the paste is stable and delicate.

② The crystalline form of silicon dioxide is mostly round honeycomb-like polymeric particles filled with small voids. When contacting the tooth surface, the particles can be dispersed, and the contact area with the tooth surface dirt increases, so the decontamination effect is good. The friction value can be adjusted within a certain range, so that the toothpaste paste has a suitable friction value, which can clean the teeth without damaging the enamel.

③ The refractive index of silica can be adjusted within a certain range, which is very suitable for the production of transparent toothpaste.

④ The compatibility of silica and fluoride is very good, which can keep the effective fluoride in toothpaste at a high level.

⑤ The purity of silicon dioxide is high, and the harmful impurities are few. It has high safety when used in toothpaste

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